Support terraform state mv

[kmoe]

Support terraform state mv:

Usage: terraform state mv [options] SOURCE DESTINATION

 This command will move an item matched by the address given to the
 destination address. This command can also move to a destination address
 in a completely different state file.

 This can be used for simple resource renaming, moving items to and from
 a module, moving entire modules, and more. And because this command can also
 move data to a completely new state, it can also be used for refactoring
 one configuration into multiple separately managed Terraform configurations.

 This command will output a backup copy of the state prior to saving any
 changes. The backup cannot be disabled. Due to the destructive nature
 of this command, backups are required.

 If you're moving an item to a different state file, a backup will be created
 for each state file.

Options:

  -dry-run            If set, prints out what would've been moved but doesn't
                      actually move anything.

  -backup=PATH        Path where Terraform should write the backup for the original
                      state. This can't be disabled. If not set, Terraform
                      will write it to the same path as the statefile with
                      a ".backup" extension.

  -backup-out=PATH    Path where Terraform should write the backup for the destination
                      state. This can't be disabled. If not set, Terraform
                      will write it to the same path as the destination state
                      file with a backup extension. This only needs
                      to be specified if -state-out is set to a different path
                      than -state.

  -lock=true          Lock the state files when locking is supported.

  -lock-timeout=0s    Duration to retry a state lock.

  -state=PATH         Path to the source state file. Defaults to the configured
                      backend, or "terraform.tfstate"

  -state-out=PATH     Path to the destination state file to write to. If this
                      isn't specified, the source state file will be used. This
                      can be a new or existing path.